Window shield



April 17, 192s.

l w. B. CLARK r WINDOW SHIELDl 2 sheets-sheet 1 'Filed June' 5o. 1927 A TTQRNEY W. B. CLARK WINDOW SHIELD April 17, 192s i 1,666,773

Filed June (5,0. 1927 2 Sheets-Sheet 2 a Q *D JIM /1 TTORNEYS .35' tically disposed Patented Apr'. 17, v192e.

PATENT OFFICE.

WALTER B. CLARK, or

WINDOW SHIELD.

LI'COLN PARK, *MICHIGANQ ASSIGNOROF ONE-HALF TO I. D. LAWRENCE, F DETROIT, MICHIGAN. c ,d i

Application lcd .Tune` 30, 1927. Serial No. 202,588.

This invention relates to improvements in window shields and more particularly to a shield for the window openings for the tellers in banks,.and other-financial institutions.

One object of the invention is to provide a window shield with operating mechanism whichmay be rendered operative simply by' the closing of an electrical circuit. j A

' Another object is to' provide a window 1 shield which, after having been moved to window closing position, may be'utilized to lgive an audible signal.

tively simple operating mechanism which require's-little, if any; attention to maintain `1t in sound operative condition.

With'these and other objects in view the invention consists in certain novel details of construction `and combinations and arrangements of parts, all as will hereinafter be more fully described and the novel features thereof particularly pointed out in the appended claims. `j l 1n the accompanying drawingsnism constituting the present invention.

-Fig 2 is a transverse vertical sectional view taken centrally 1of the structure shown 'in-Fig. 1; and i -Fig. 3 is a front elevational view.

In 'accordance with the present invention a housing .'10 is vadapted to be .suitably mounted above the Window opening to be protected and in Vid housingthere is a vcrfsiiot 11 extending substantially throughout the length of said housing. Positioned in. said slot 11 is the shield 12. When in its normal position above the win- .dow opening it is adapted to be supported by bolts 13 slidably housed in the housing' 10, said bolts preferably :projecting .into slot 11 between the loweredge of shield 12. As shown, the boltsj13jare located'in the holes drilled in housing 10, said holesbeing closed at their exposed endsby plugs. 14. Interposed between each plu-g. and bolt is a spring 15 for yieldingly urging the bolt toward slot- 11 into engagement with shield.12.

For retracting the bolts 13 in cases of emergency a shaft`16 is journaled in suitable bearings. on housing 10, said shaft carrying a plurality of pins 1-7 capable ofl engaging projections 18 (also preferably inthe form A further object is to provide a compara-f Figure 1 is atop plan View ofthe mecha-'r v on the housing.

of pins), ,shaft 16Jbeing connected to and driven by a small motor 19 mounted on the housing, operation of said motor being controlled by a switch (not shown) which, as will be understood, can be suitabl 1 located in the'tellers cage 'or at a point w erev it can be readily reached by a person standing behind the window to be protected. j

When` the switch, which may be an ordi,- nary push button, is closed motor 19l will rotate shaft 16, and when pins 17'strike projections 18 'on bolts 13 vthe latterwill be rtracted from the path of shield 12 whereupon the latter will be' free to fall by gravity vto close the window opening. So long as .the

motor is kept in operation the bolts 13 will be caused to travel back and forth in the.

housing so that they will be caused to constantly hit against the lower shield and produce a hammering effect. This result, which may'serve as' an alarm, will be produced by the fact that each time the bolt 13 is retracted and spring' 15 depressed, said spring will throw vthe bolt back against the lowered shield immediatelyupon disengagement of pin 17 and projection 18 by the continuous -vrotation of shaft 16. The tone produced by this hammering eHect will depend upon the prevent turning of bolts 13 so that pins 18 may not accidentally move out of the path of pin 17, said bolts may be provided with suitable prjections 2Q adapted to be guided in slots 21- in housing 10. A

For elevating .the shield from its Window lclosing positionto its normal'position above said window a rack 22 is provided on said shield at each end thereof, cach "rack meshing With a pinion 23 on a shaft 24 extending lengthwise of the housing and on saidshaft there is also a gear 25 adapted to engage with a gear 26 on a shaft 27 also journaled Shaft 27 carries a larger gear 28 and when it is desired to operate the train of gears just described the slidable gear 29 is adapted to be clutched into mesh with gear 28 by means of a suitable operating lever 30. It will be understood that gear 29 is normallyv disengaged kfrom gear 28 in i order to permit shield 12 to fall by gravity when the supporting bolts 13 are moved out of opening 11.-

What I .claim is:

1. In a device of the character described,

4a vertically movableshield adapted to-be normally positioned above a windowl opening, releasable means lfor retaining said shield' in normal position, means lforyreleasing said retaining means whereby said shield will move by gravity to close the window opening, a driven shaft and means operable by said shaft for elevating said shield fromy closed to normal position.

2; In a device of the character described, a-

shield, means directly supporting'said shield `above a window opening, means for wi'thports will subsequently be reciprocated back and forth against. the shield in such closed position.

4. In a device of the character described, a

housing having a. vertically disposed opening therein, a shieldslidable in said opening, bolts in said housing and normally projecting into saidopening and constituting a support' for said shield to normally position it above a window opening, and power driven means for retracting said bolts from said opening whereby the ,shield will be free to drop by gravity to window closing position,

5. In a device of the character described,`a housing having'a vertically disposed opening therein, a shield slidable in said opening,

bolts in said housing and normally project.-

ing into said opening and constituting a support for said shield to normally position 1t above a window opening, power driven means for retracting said bolts from said opening whereby the shield will be free to drop by gravity to window closing position, and meansadapted to be connected to said power driven means for elevating said shield from closed position to its normal position above the window opening. i

6. In a device of the vcharacter described,

` a housing having a vertically disposed opening therein, .a shield slidable in said opening, bolts slidable in said housing and normally positioned'in said opening to'support the` shield above the window opening, power driven means for retracting said bolts from said opening whereby the shield will be free to drop by gravityto window closing position, andmeans for urging said bolts toward said opening and shield, said power driven means for retracting the bolts being adapted vto becontinuously operated when the shield is in closed position whereby said bolts will y be constantly reciprocatedback and forth against-said shieldwlien the latter is in its closed position. '1 j 7. In a device of the character described,

a housing, a shield vertically movable in said housing, supporting elements in said housing for normally holding said shield at a point above a window opening,`and means for reciprocating said supporting means back and forth against saidshield when the latter has moved downwardly in the housing to win- Y i dow closing position.

8. In a device ofthe character'described, a

a housing, a shield vertically movable in saidy housing, bolts slidably mounted in said houS: ing, means for yieldingly urging said bolts fin Onedirection into engagement with said shield to supportthe latter in av position above the wind'ovff'a projection on each of.

lsaid bolts, and means for periodically engaging said projection Iand moving said bolt away from said shield whereby when said `bolt is rstvmoved fromY engagement with said shield the latter will be free to dropl into window closing position and thereafter said bolts` will be reciprocatedv back and forth against said shield.`

9. In a device of the character described, a housing, a shield vertically movable in lsaid housing, bolts slidable in said housing,

means for yieldingly urging said bolts into.,`

engagement with said shield to support .the

latter in a position above a window opening, a projection on-each of saidl bolts, a shaft journaled on said housing, pins on said shaft adapted to` periodically' engage the projections on saidbolts, and means for rotating said shaft.

al housing, a shield vertically movable in said housing. bolts slidable in saidl housing, means for yieldingly urging said bolts into engagement `with said shield to support the latter in a position above a window opening, a projection on each of said bolts, a shaft `journaled on said housing, pins on said shaft adapted to periodically engage the projections on said bolts, power driven meansv for rotating said shaft, and connections between said power driven shaft and said shield for raising the same from its window lclosing 'ciition to its normal position above the -w1n- .WALTER B. CLARK.

10. In a device of the character described, v

` I I CERTLFICATE OF CORRECTION.: Pmm No. 1,666,773. I Granted April 17,1928, to

l WALTER CLARK.` Y C i It is herehy certified that the name of the assignee in the above numbered patent was erroneously written and printed as l. D. Lawrence, whereas said name shoul'd have been Written andprinted as J. D. Lalwrence,-41s.` shown by the records'ofl assignments in this office; andthat the said Letters Patent should be read with this correction therein that the same max 'onform to the record,

'of' the case in the Patent Office. i l L Signed and sealed this 29th day of May, A. D. A1928.

M. Jl Moore,

(Seal) s Acting Commissioner of-Patents. 

